LM337LM datasheet(3/5 Pages) NSC

部件名	LM337LM

功能描述	3-Terminal Adjustable Regulator

PDF	5 Pages

Scroll/Zoom	100%

制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

标志

3 / 5 page

Typical Applications

1.2V-25V Adjustable Regulator

DS009134-3

Full output current not available at high input-output voltages

†C1 = 1 µF solid tantalum or 10 µF aluminum electrolytic required for

stability

*C2 = 1 µF solid tantalum is required only if regulator is more than 4" from

power supply filter capacitor

Regulator with Trimmable Output Voltage

DS009134-4

Trim Procedure:

—If VOUT is −23.08V or bigger, cut out R3 (if smaller, don’t cut it out).

— Then if VOUT is −22.47V or bigger, cut out R4 (if smaller, don’t).

— Then if VOUT is −22.16V or bigger, cut out R5 (if smaller, don’t).

This will trim the output to well within 1% of −22.00 VDC, without any of the

expense or trouble of a trim pot (see LB-46). Of course, this technique can

be used at any output voltage level.

LM337LM 数据表(PDF) 3 Page - National Semiconductor (TI)